[CMcAllister]

The little install kits in the auto parts with the red and green anti corrosion discs, come with a pack of dielectric grease for this purpose.

It will leave it greasy and may not be something you want to deal with.

I would think in a race car the battery would be charged and serviced enough you could stay on top of this without any grease or sprays.

I have seen Optimas corrode over time if neglected,